All packages are named m_api_xxx. You must replace xxx with the table short name of the table columns that are to be changed.
For example, the package for changing columns in table m_quote_summaries is referred as m_api_qs, with qs as the short name of this table. The only exception to this rule is package m_api_misc. This package contains various tables for which you can only update a few columns.
For information on the available packages, see Appendix: Packages and Supported Columns.